Magnetic induction type smoke and thermal detector

摘要

Disclosed is a self-guided hot-rolled composite detector that can be efficiently optimized and operated stably for a long period of time while solving the problem of sensor malfunctions of the most common and widely used heat detectors and smoke detectors in fire detectors. The magnetic induction type hot-rolled composite detector includes a circular magnetic induction chamber 110 for detecting fire smoke and gas due to a fire, and air heated by a fire, and a magnetic induction coil 1 (in the magnetic induction chamber 110). 115a), a magnetic body 1 (116a), a magnetic induction coil 2 (115b), and a magnetic body 2 (116b), so that a sensing circuit capable of sensing heat or smoke at the same time is provided in duplicate. It is provided with smoke or heat detection selection switches 1 and 2 (309a, 309b) for selectively detecting the induced voltage, current, and resistance values generated by each of the magnetic induction coils 1 and 2 (115a, 115b) described above. It performs the function of a redundant smoke detector, a redundant heat detector, or a hot rolled composite detector by a switch, and a magnetic induction coil voltage/current/resistance detector 310, a signal amplification part 320, a signal comparison part 330, and An alarm judgment unit 340, an alarm contact signal output unit (351a), and an RS-422/485 signal output unit (351b) are provided to detect fire at an early stage and at the same time further improve reliability, and an automatic fire alarm facility. It is possible to provide a magnetic induction type hot rolled composite detector as the main component (fire detector).